【正确答案】 B

【答案解析】[听力原文]6-8
M: How come David is always so full of energy?
W: He has a strange but highly effective way of sleeping.
M: What is that?
W: He takes a short sleep for an hour every six hours and has a total of four hours of sleep each day.
M: Where did he get that strange idea?
W: He read flora a book which said it was the best way for human beings, and he believed it.
M: How many hours do you sleep a day?
W: I need at least seven hours. I once tried to follow David's example, but it never worked out for me.
M: If I sleep during the day, I can never wake up.
W: Not everyone is a David I guess.

[精解] 题干问：“这位男士觉得戴维睡觉的方式怎么样?”对话开始男士问：“戴维为什么总是这么精力充沛?”女士回答说：“戴维有一个奇怪而又高效的睡觉方式；他每六个小时睡一次，每次睡一个小时，每天共睡四个小时。”男士又问：“他从哪儿得来的这个奇怪的主意?”从男士第二次的问句可知，男士认为戴维睡觉的方式很奇怪。所以答案选B。

【正确答案】 A

【答案解析】[精解] 题干问：“戴维一天睡几个小时?”从女士的答语可知他一天总共睡四个小时。所以答案选A。

【正确答案】 C

【答案解析】[精解] 题干问：“谈话的最后这位女士建议什么?”对话的最后女士说：”我想并不是所有的人都和戴维一样。”言外之意是“人有不同的睡觉方式。”即答案选C。